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Specific Abilities in the Workplace: More Important Than g?

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General mental ability (GMA) is often seen as the top job performance predictor. However, recent research indicates specific abilities can be equally or even better predictors of work performance.

Keywords:
bi-factor modelgeneral mental abilityhierarchical factor modelhigher-order factor modelintelligencejob performancenested-factors modelrelative importance analysisspecific abilitiesspecific aptitude theory

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Area of Science:

  • Industrial-Organizational Psychology
  • Human Resources Management
  • Cognitive Psychology

Background:

  • General mental ability (GMA) is widely recognized as a primary psychological predictor of job performance.
  • Specific abilities are often considered to have limited incremental validity beyond GMA in performance prediction.
  • Historical research has focused on the dominance of general intelligence ('g') in explaining performance variance.

Purpose of the Study:

  • To review the historical findings on the predictive validity of general mental ability (GMA) versus specific abilities for job performance.
  • To explore different methodological approaches for assessing the relative influence of general and specific cognitive abilities.
  • To present and discuss recent research utilizing relative importance analysis in this domain.

Main Methods:

  • Literature review of historical findings and theoretical approaches.
  • Analysis of recent studies employing relative importance analysis.
  • Comparative assessment of predictive validities of GMA and specific abilities.

Main Results:

  • Recent studies using relative importance analysis challenge the notion that GMA is the sole superior predictor.
  • Specific abilities were found to be equally strong, and in some cases superior, predictors of work performance compared to GMA.
  • The incremental validity of specific abilities may be underestimated in traditional predictive models.

Conclusions:

  • The predictive utility of specific abilities for job performance warrants greater consideration.
  • Future research should continue to explore the nuanced interplay between general and specific cognitive abilities in occupational settings.
  • Re-evaluating the role of specific abilities can refine personnel selection and development strategies.